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2010 Dodge Grand caravan 3.8L (I think) CEL light came on and codes pulled were p0304 p0300 and p3431 , I'm curious as to what's up with the p3431. Looking it up on the typical obd sites say that it's a code for a cylinder deactivation feature. Could this code be related to my misfire?

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Yes, that code could well be related to your misfire.

Codes can be thrown as they are related to the fault recorded and, sometimes, odd codes get recorded... I had a manual Golf which threw an automatic gearbox fault code...

Once the fault has been fixed, then related codes, once cleared, will stay cleared.

  • Just wait till you get a "cheap" scanner app where somebody entered the text of the messages by copying a list they found somewhere, and error code p0123 gets reported as "same as above". – alephzero Jul 9 '19 at 11:25

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